1#ifndef _HW_SPAPR_VIO_H
2#define _HW_SPAPR_VIO_H
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24#include "sysemu/dma.h"
25
26#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
27#define VIO_SPAPR_DEVICE(obj) \
28 OBJECT_CHECK(VIOsPAPRDevice, (obj), TYPE_VIO_SPAPR_DEVICE)
29#define VIO_SPAPR_DEVICE_CLASS(klass) \
30 OBJECT_CLASS_CHECK(VIOsPAPRDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE)
31#define VIO_SPAPR_DEVICE_GET_CLASS(obj) \
32 OBJECT_GET_CLASS(VIOsPAPRDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE)
33
34#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
35#define SPAPR_VIO_BUS(obj) OBJECT_CHECK(VIOsPAPRBus, (obj), TYPE_SPAPR_VIO_BUS)
36
37struct VIOsPAPRDevice;
38
39typedef struct VIOsPAPR_CRQ {
40 uint64_t qladdr;
41 uint32_t qsize;
42 uint32_t qnext;
43 int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
44} VIOsPAPR_CRQ;
45
46typedef struct VIOsPAPRDevice VIOsPAPRDevice;
47typedef struct VIOsPAPRBus VIOsPAPRBus;
48
49typedef struct VIOsPAPRDeviceClass {
50 DeviceClass parent_class;
51
52 const char *dt_name, *dt_type, *dt_compatible;
53 target_ulong signal_mask;
54 uint32_t rtce_window_size;
55 int (*init)(VIOsPAPRDevice *dev);
56 void (*reset)(VIOsPAPRDevice *dev);
57 int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
58} VIOsPAPRDeviceClass;
59
60struct VIOsPAPRDevice {
61 DeviceState qdev;
62 uint32_t reg;
63 uint32_t irq;
64 target_ulong signal_state;
65 VIOsPAPR_CRQ crq;
66 AddressSpace as;
67 sPAPRTCETable *tcet;
68};
69
70#define DEFINE_SPAPR_PROPERTIES(type, field) \
71 DEFINE_PROP_UINT32("reg", type, field.reg, -1)
72
73struct VIOsPAPRBus {
74 BusState bus;
75 uint32_t next_reg;
76 int (*init)(VIOsPAPRDevice *dev);
77 int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
78};
79
80extern VIOsPAPRBus *spapr_vio_bus_init(void);
81extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
82extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
83extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus);
84
85extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
86
87static inline qemu_irq spapr_vio_qirq(VIOsPAPRDevice *dev)
88{
89 return xics_get_qirq(spapr->icp, dev->irq);
90}
91
92static inline bool spapr_vio_dma_valid(VIOsPAPRDevice *dev, uint64_t taddr,
93 uint32_t size, DMADirection dir)
94{
95 return dma_memory_valid(&dev->as, taddr, size, dir);
96}
97
98static inline int spapr_vio_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
99 void *buf, uint32_t size)
100{
101 return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ?
102 H_DEST_PARM : H_SUCCESS;
103}
104
105static inline int spapr_vio_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
106 const void *buf, uint32_t size)
107{
108 return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ?
109 H_DEST_PARM : H_SUCCESS;
110}
111
112static inline int spapr_vio_dma_set(VIOsPAPRDevice *dev, uint64_t taddr,
113 uint8_t c, uint32_t size)
114{
115 return (dma_memory_set(&dev->as, taddr, c, size) != 0) ?
116 H_DEST_PARM : H_SUCCESS;
117}
118
119#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
120#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
121#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
122#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
123#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
124
125int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
126
127VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg);
128void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
129void spapr_vty_create(VIOsPAPRBus *bus, CharDriverState *chardev);
130void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd);
131void spapr_vscsi_create(VIOsPAPRBus *bus);
132
133VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus);
134
135void spapr_vio_quiesce(void);
136
137extern const VMStateDescription vmstate_spapr_vio;
138
139#define VMSTATE_SPAPR_VIO(_f, _s) \
140 VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, VIOsPAPRDevice)
141
142#endif
143